/*
 ** server.c -- a stream socket server demo
 */

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>

#include <netinet/in.h>

#include <arpa/inet.h>

#define MYPORT 3490    /* the port users will be connecting to */
#define BACKLOG 10     /* how many pending connections queue will hold */
#define MAXLINE 100	   /* Maximum line numbers */



int main()
{
	int sockfd, new_fd;  /* listen on sock_fd, new connection on new_fd */
	struct sockaddr_in my_addr;    /* my address information */
	struct sockaddr_in their_addr; /* connector's address information */
	int sin_size;

	if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
		perror("socket");
		exit(1);
	}

	my_addr.sin_family = AF_INET;         /* host byte order */
	my_addr.sin_port = htons(MYPORT);     /* short, network byte order */
	my_addr.sin_addr.s_addr = INADDR_ANY; /* automatically fill with my IP */
	bzero(&(my_addr.sin_zero), 8);        /* zero the rest of the struct */

	if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr)) == -1) {
		perror("bind");
		exit(1);
	}

	if (listen(sockfd, BACKLOG) == -1) {
		perror("listen");
		exit(1);
	}

	while(1) {  /* main accept() loop */
		sin_size = sizeof(struct sockaddr_in);
		if ((new_fd = accept(sockfd, (struct sockaddr *)&their_addr, &sin_size)) == -1) {
			perror("accept");
			continue;
		}

		printf("server: got connection from %s\n", inet_ntoa(their_addr.sin_addr));


		char buf[MAXLINE];
		int rec = 0;

		while((rec = read(new_fd, buf, MAXLINE)) > 0){
			buf[rec] = '\0';
			write(new_fd, buf, rec);
			printf("server: Line received from client: %s \n", buf);
		}


		close(new_fd);

	}

	return 0;
}

